## I need to fix Upper control limit for particulate matter rejects based on results of 20 to 30 batches, I am following quantile approach with 0.99865% as upper limit. data is non normal distributed hence I used smooth curve fit in SAS. could any one tell m

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Jun 9, 2014

I need to fix Upper control limit for particulate matter rejects based on results of 20 to 30 batches, I am following quantile approach with 0.99865% as upper limit. data is non normal distributed hence I used smooth curve fit in SAS. could any one tell me is this the right approach?

Regards

Raghunandan